Mazzullo , Salvatore. “Entropy of the Earth / Sun Planetary System: The Earth’s Temperature in a Millennial Precession Cycle ”. Earthline Journal of Mathematical Sciences 9, no. 2 (April 15, 2022): 201-227. Accessed March 23, 2026. https://earthlinepublishers.com/index.php/ejms/article/view/499.